1 /* 2 * Regular cardbus driver ("yenta_socket") 3 * 4 * (C) Copyright 1999, 2000 Linus Torvalds 5 * 6 * Changelog: 7 * Aug 2002: Manfred Spraul <manfred@colorfullife.com> 8 * Dynamically adjust the size of the bridge resource 9 * 10 * May 2003: Dominik Brodowski <linux@brodo.de> 11 * Merge pci_socket.c and yenta.c into one file 12 */ 13 #include <linux/init.h> 14 #include <linux/pci.h> 15 #include <linux/workqueue.h> 16 #include <linux/interrupt.h> 17 #include <linux/delay.h> 18 #include <linux/module.h> 19 #include <linux/io.h> 20 #include <linux/slab.h> 21 22 #include <pcmcia/ss.h> 23 24 #include "yenta_socket.h" 25 #include "i82365.h" 26 27 static bool disable_clkrun; 28 module_param(disable_clkrun, bool, 0444); 29 MODULE_PARM_DESC(disable_clkrun, "If PC card doesn't function properly, please try this option"); 30 31 static bool isa_probe = 1; 32 module_param(isa_probe, bool, 0444); 33 MODULE_PARM_DESC(isa_probe, "If set ISA interrupts are probed (default). Set to N to disable probing"); 34 35 static bool pwr_irqs_off; 36 module_param(pwr_irqs_off, bool, 0644); 37 MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); 38 39 static char o2_speedup[] = "default"; 40 module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444); 41 MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' " 42 "or 'default' (uses recommended behaviour for the detected bridge)"); 43 44 /* 45 * Only probe "regular" interrupts, don't 46 * touch dangerous spots like the mouse irq, 47 * because there are mice that apparently 48 * get really confused if they get fondled 49 * too intimately. 50 * 51 * Default to 11, 10, 9, 7, 6, 5, 4, 3. 52 */ 53 static u32 isa_interrupts = 0x0ef8; 54 55 56 #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args) 57 58 /* Don't ask.. */ 59 #define to_cycles(ns) ((ns)/120) 60 #define to_ns(cycles) ((cycles)*120) 61 62 /* 63 * yenta PCI irq probing. 64 * currently only used in the TI/EnE initialization code 65 */ 66 #ifdef CONFIG_YENTA_TI 67 static int yenta_probe_cb_irq(struct yenta_socket *socket); 68 static unsigned int yenta_probe_irq(struct yenta_socket *socket, 69 u32 isa_irq_mask); 70 #endif 71 72 73 static unsigned int override_bios; 74 module_param(override_bios, uint, 0000); 75 MODULE_PARM_DESC(override_bios, "yenta ignore bios resource allocation"); 76 77 /* 78 * Generate easy-to-use ways of reading a cardbus sockets 79 * regular memory space ("cb_xxx"), configuration space 80 * ("config_xxx") and compatibility space ("exca_xxxx") 81 */ 82 static inline u32 cb_readl(struct yenta_socket *socket, unsigned reg) 83 { 84 u32 val = readl(socket->base + reg); 85 debug("%04x %08x\n", socket, reg, val); 86 return val; 87 } 88 89 static inline void cb_writel(struct yenta_socket *socket, unsigned reg, u32 val) 90 { 91 debug("%04x %08x\n", socket, reg, val); 92 writel(val, socket->base + reg); 93 readl(socket->base + reg); /* avoid problems with PCI write posting */ 94 } 95 96 static inline u8 config_readb(struct yenta_socket *socket, unsigned offset) 97 { 98 u8 val; 99 pci_read_config_byte(socket->dev, offset, &val); 100 debug("%04x %02x\n", socket, offset, val); 101 return val; 102 } 103 104 static inline u16 config_readw(struct yenta_socket *socket, unsigned offset) 105 { 106 u16 val; 107 pci_read_config_word(socket->dev, offset, &val); 108 debug("%04x %04x\n", socket, offset, val); 109 return val; 110 } 111 112 static inline u32 config_readl(struct yenta_socket *socket, unsigned offset) 113 { 114 u32 val; 115 pci_read_config_dword(socket->dev, offset, &val); 116 debug("%04x %08x\n", socket, offset, val); 117 return val; 118 } 119 120 static inline void config_writeb(struct yenta_socket *socket, unsigned offset, u8 val) 121 { 122 debug("%04x %02x\n", socket, offset, val); 123 pci_write_config_byte(socket->dev, offset, val); 124 } 125 126 static inline void config_writew(struct yenta_socket *socket, unsigned offset, u16 val) 127 { 128 debug("%04x %04x\n", socket, offset, val); 129 pci_write_config_word(socket->dev, offset, val); 130 } 131 132 static inline void config_writel(struct yenta_socket *socket, unsigned offset, u32 val) 133 { 134 debug("%04x %08x\n", socket, offset, val); 135 pci_write_config_dword(socket->dev, offset, val); 136 } 137 138 static inline u8 exca_readb(struct yenta_socket *socket, unsigned reg) 139 { 140 u8 val = readb(socket->base + 0x800 + reg); 141 debug("%04x %02x\n", socket, reg, val); 142 return val; 143 } 144 145 static inline u8 exca_readw(struct yenta_socket *socket, unsigned reg) 146 { 147 u16 val; 148 val = readb(socket->base + 0x800 + reg); 149 val |= readb(socket->base + 0x800 + reg + 1) << 8; 150 debug("%04x %04x\n", socket, reg, val); 151 return val; 152 } 153 154 static inline void exca_writeb(struct yenta_socket *socket, unsigned reg, u8 val) 155 { 156 debug("%04x %02x\n", socket, reg, val); 157 writeb(val, socket->base + 0x800 + reg); 158 readb(socket->base + 0x800 + reg); /* PCI write posting... */ 159 } 160 161 static void exca_writew(struct yenta_socket *socket, unsigned reg, u16 val) 162 { 163 debug("%04x %04x\n", socket, reg, val); 164 writeb(val, socket->base + 0x800 + reg); 165 writeb(val >> 8, socket->base + 0x800 + reg + 1); 166 167 /* PCI write posting... */ 168 readb(socket->base + 0x800 + reg); 169 readb(socket->base + 0x800 + reg + 1); 170 } 171 172 static ssize_t show_yenta_registers(struct device *yentadev, struct device_attribute *attr, char *buf) 173 { 174 struct pci_dev *dev = to_pci_dev(yentadev); 175 struct yenta_socket *socket = pci_get_drvdata(dev); 176 int offset = 0, i; 177 178 offset = snprintf(buf, PAGE_SIZE, "CB registers:"); 179 for (i = 0; i < 0x24; i += 4) { 180 unsigned val; 181 if (!(i & 15)) 182 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); 183 val = cb_readl(socket, i); 184 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %08x", val); 185 } 186 187 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n\nExCA registers:"); 188 for (i = 0; i < 0x45; i++) { 189 unsigned char val; 190 if (!(i & 7)) { 191 if (i & 8) { 192 memcpy(buf + offset, " -", 2); 193 offset += 2; 194 } else 195 offset += snprintf(buf + offset, PAGE_SIZE - offset, "\n%02x:", i); 196 } 197 val = exca_readb(socket, i); 198 offset += snprintf(buf + offset, PAGE_SIZE - offset, " %02x", val); 199 } 200 buf[offset++] = '\n'; 201 return offset; 202 } 203 204 static DEVICE_ATTR(yenta_registers, S_IRUSR, show_yenta_registers, NULL); 205 206 /* 207 * Ugh, mixed-mode cardbus and 16-bit pccard state: things depend 208 * on what kind of card is inserted.. 209 */ 210 static int yenta_get_status(struct pcmcia_socket *sock, unsigned int *value) 211 { 212 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 213 unsigned int val; 214 u32 state = cb_readl(socket, CB_SOCKET_STATE); 215 216 val = (state & CB_3VCARD) ? SS_3VCARD : 0; 217 val |= (state & CB_XVCARD) ? SS_XVCARD : 0; 218 val |= (state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) ? 0 : SS_PENDING; 219 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? SS_PENDING : 0; 220 221 222 if (state & CB_CBCARD) { 223 val |= SS_CARDBUS; 224 val |= (state & CB_CARDSTS) ? SS_STSCHG : 0; 225 val |= (state & (CB_CDETECT1 | CB_CDETECT2)) ? 0 : SS_DETECT; 226 val |= (state & CB_PWRCYCLE) ? SS_POWERON | SS_READY : 0; 227 } else if (state & CB_16BITCARD) { 228 u8 status = exca_readb(socket, I365_STATUS); 229 val |= ((status & I365_CS_DETECT) == I365_CS_DETECT) ? SS_DETECT : 0; 230 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { 231 val |= (status & I365_CS_STSCHG) ? 0 : SS_STSCHG; 232 } else { 233 val |= (status & I365_CS_BVD1) ? 0 : SS_BATDEAD; 234 val |= (status & I365_CS_BVD2) ? 0 : SS_BATWARN; 235 } 236 val |= (status & I365_CS_WRPROT) ? SS_WRPROT : 0; 237 val |= (status & I365_CS_READY) ? SS_READY : 0; 238 val |= (status & I365_CS_POWERON) ? SS_POWERON : 0; 239 } 240 241 *value = val; 242 return 0; 243 } 244 245 static void yenta_set_power(struct yenta_socket *socket, socket_state_t *state) 246 { 247 /* some birdges require to use the ExCA registers to power 16bit cards */ 248 if (!(cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) && 249 (socket->flags & YENTA_16BIT_POWER_EXCA)) { 250 u8 reg, old; 251 reg = old = exca_readb(socket, I365_POWER); 252 reg &= ~(I365_VCC_MASK | I365_VPP1_MASK | I365_VPP2_MASK); 253 254 /* i82365SL-DF style */ 255 if (socket->flags & YENTA_16BIT_POWER_DF) { 256 switch (state->Vcc) { 257 case 33: 258 reg |= I365_VCC_3V; 259 break; 260 case 50: 261 reg |= I365_VCC_5V; 262 break; 263 default: 264 reg = 0; 265 break; 266 } 267 switch (state->Vpp) { 268 case 33: 269 case 50: 270 reg |= I365_VPP1_5V; 271 break; 272 case 120: 273 reg |= I365_VPP1_12V; 274 break; 275 } 276 } else { 277 /* i82365SL-B style */ 278 switch (state->Vcc) { 279 case 50: 280 reg |= I365_VCC_5V; 281 break; 282 default: 283 reg = 0; 284 break; 285 } 286 switch (state->Vpp) { 287 case 50: 288 reg |= I365_VPP1_5V | I365_VPP2_5V; 289 break; 290 case 120: 291 reg |= I365_VPP1_12V | I365_VPP2_12V; 292 break; 293 } 294 } 295 296 if (reg != old) 297 exca_writeb(socket, I365_POWER, reg); 298 } else { 299 u32 reg = 0; /* CB_SC_STPCLK? */ 300 switch (state->Vcc) { 301 case 33: 302 reg = CB_SC_VCC_3V; 303 break; 304 case 50: 305 reg = CB_SC_VCC_5V; 306 break; 307 default: 308 reg = 0; 309 break; 310 } 311 switch (state->Vpp) { 312 case 33: 313 reg |= CB_SC_VPP_3V; 314 break; 315 case 50: 316 reg |= CB_SC_VPP_5V; 317 break; 318 case 120: 319 reg |= CB_SC_VPP_12V; 320 break; 321 } 322 if (reg != cb_readl(socket, CB_SOCKET_CONTROL)) 323 cb_writel(socket, CB_SOCKET_CONTROL, reg); 324 } 325 } 326 327 static int yenta_set_socket(struct pcmcia_socket *sock, socket_state_t *state) 328 { 329 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 330 u16 bridge; 331 332 /* if powering down: do it immediately */ 333 if (state->Vcc == 0) 334 yenta_set_power(socket, state); 335 336 socket->io_irq = state->io_irq; 337 bridge = config_readw(socket, CB_BRIDGE_CONTROL) & ~(CB_BRIDGE_CRST | CB_BRIDGE_INTR); 338 if (cb_readl(socket, CB_SOCKET_STATE) & CB_CBCARD) { 339 u8 intr; 340 bridge |= (state->flags & SS_RESET) ? CB_BRIDGE_CRST : 0; 341 342 /* ISA interrupt control? */ 343 intr = exca_readb(socket, I365_INTCTL); 344 intr = (intr & ~0xf); 345 if (!socket->dev->irq) { 346 intr |= socket->cb_irq ? socket->cb_irq : state->io_irq; 347 bridge |= CB_BRIDGE_INTR; 348 } 349 exca_writeb(socket, I365_INTCTL, intr); 350 } else { 351 u8 reg; 352 353 reg = exca_readb(socket, I365_INTCTL) & (I365_RING_ENA | I365_INTR_ENA); 354 reg |= (state->flags & SS_RESET) ? 0 : I365_PC_RESET; 355 reg |= (state->flags & SS_IOCARD) ? I365_PC_IOCARD : 0; 356 if (state->io_irq != socket->dev->irq) { 357 reg |= state->io_irq; 358 bridge |= CB_BRIDGE_INTR; 359 } 360 exca_writeb(socket, I365_INTCTL, reg); 361 362 reg = exca_readb(socket, I365_POWER) & (I365_VCC_MASK|I365_VPP1_MASK); 363 reg |= I365_PWR_NORESET; 364 if (state->flags & SS_PWR_AUTO) 365 reg |= I365_PWR_AUTO; 366 if (state->flags & SS_OUTPUT_ENA) 367 reg |= I365_PWR_OUT; 368 if (exca_readb(socket, I365_POWER) != reg) 369 exca_writeb(socket, I365_POWER, reg); 370 371 /* CSC interrupt: no ISA irq for CSC */ 372 reg = exca_readb(socket, I365_CSCINT); 373 reg &= I365_CSC_IRQ_MASK; 374 reg |= I365_CSC_DETECT; 375 if (state->flags & SS_IOCARD) { 376 if (state->csc_mask & SS_STSCHG) 377 reg |= I365_CSC_STSCHG; 378 } else { 379 if (state->csc_mask & SS_BATDEAD) 380 reg |= I365_CSC_BVD1; 381 if (state->csc_mask & SS_BATWARN) 382 reg |= I365_CSC_BVD2; 383 if (state->csc_mask & SS_READY) 384 reg |= I365_CSC_READY; 385 } 386 exca_writeb(socket, I365_CSCINT, reg); 387 exca_readb(socket, I365_CSC); 388 if (sock->zoom_video) 389 sock->zoom_video(sock, state->flags & SS_ZVCARD); 390 } 391 config_writew(socket, CB_BRIDGE_CONTROL, bridge); 392 /* Socket event mask: get card insert/remove events.. */ 393 cb_writel(socket, CB_SOCKET_EVENT, -1); 394 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); 395 396 /* if powering up: do it as the last step when the socket is configured */ 397 if (state->Vcc != 0) 398 yenta_set_power(socket, state); 399 return 0; 400 } 401 402 static int yenta_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io) 403 { 404 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 405 int map; 406 unsigned char ioctl, addr, enable; 407 408 map = io->map; 409 410 if (map > 1) 411 return -EINVAL; 412 413 enable = I365_ENA_IO(map); 414 addr = exca_readb(socket, I365_ADDRWIN); 415 416 /* Disable the window before changing it.. */ 417 if (addr & enable) { 418 addr &= ~enable; 419 exca_writeb(socket, I365_ADDRWIN, addr); 420 } 421 422 exca_writew(socket, I365_IO(map)+I365_W_START, io->start); 423 exca_writew(socket, I365_IO(map)+I365_W_STOP, io->stop); 424 425 ioctl = exca_readb(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); 426 if (io->flags & MAP_0WS) 427 ioctl |= I365_IOCTL_0WS(map); 428 if (io->flags & MAP_16BIT) 429 ioctl |= I365_IOCTL_16BIT(map); 430 if (io->flags & MAP_AUTOSZ) 431 ioctl |= I365_IOCTL_IOCS16(map); 432 exca_writeb(socket, I365_IOCTL, ioctl); 433 434 if (io->flags & MAP_ACTIVE) 435 exca_writeb(socket, I365_ADDRWIN, addr | enable); 436 return 0; 437 } 438 439 static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem) 440 { 441 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 442 struct pci_bus_region region; 443 int map; 444 unsigned char addr, enable; 445 unsigned int start, stop, card_start; 446 unsigned short word; 447 448 pcibios_resource_to_bus(socket->dev->bus, ®ion, mem->res); 449 450 map = mem->map; 451 start = region.start; 452 stop = region.end; 453 card_start = mem->card_start; 454 455 if (map > 4 || start > stop || ((start ^ stop) >> 24) || 456 (card_start >> 26) || mem->speed > 1000) 457 return -EINVAL; 458 459 enable = I365_ENA_MEM(map); 460 addr = exca_readb(socket, I365_ADDRWIN); 461 if (addr & enable) { 462 addr &= ~enable; 463 exca_writeb(socket, I365_ADDRWIN, addr); 464 } 465 466 exca_writeb(socket, CB_MEM_PAGE(map), start >> 24); 467 468 word = (start >> 12) & 0x0fff; 469 if (mem->flags & MAP_16BIT) 470 word |= I365_MEM_16BIT; 471 if (mem->flags & MAP_0WS) 472 word |= I365_MEM_0WS; 473 exca_writew(socket, I365_MEM(map) + I365_W_START, word); 474 475 word = (stop >> 12) & 0x0fff; 476 switch (to_cycles(mem->speed)) { 477 case 0: 478 break; 479 case 1: 480 word |= I365_MEM_WS0; 481 break; 482 case 2: 483 word |= I365_MEM_WS1; 484 break; 485 default: 486 word |= I365_MEM_WS1 | I365_MEM_WS0; 487 break; 488 } 489 exca_writew(socket, I365_MEM(map) + I365_W_STOP, word); 490 491 word = ((card_start - start) >> 12) & 0x3fff; 492 if (mem->flags & MAP_WRPROT) 493 word |= I365_MEM_WRPROT; 494 if (mem->flags & MAP_ATTRIB) 495 word |= I365_MEM_REG; 496 exca_writew(socket, I365_MEM(map) + I365_W_OFF, word); 497 498 if (mem->flags & MAP_ACTIVE) 499 exca_writeb(socket, I365_ADDRWIN, addr | enable); 500 return 0; 501 } 502 503 504 505 static irqreturn_t yenta_interrupt(int irq, void *dev_id) 506 { 507 unsigned int events; 508 struct yenta_socket *socket = (struct yenta_socket *) dev_id; 509 u8 csc; 510 u32 cb_event; 511 512 /* Clear interrupt status for the event */ 513 cb_event = cb_readl(socket, CB_SOCKET_EVENT); 514 cb_writel(socket, CB_SOCKET_EVENT, cb_event); 515 516 csc = exca_readb(socket, I365_CSC); 517 518 if (!(cb_event || csc)) 519 return IRQ_NONE; 520 521 events = (cb_event & (CB_CD1EVENT | CB_CD2EVENT)) ? SS_DETECT : 0 ; 522 events |= (csc & I365_CSC_DETECT) ? SS_DETECT : 0; 523 if (exca_readb(socket, I365_INTCTL) & I365_PC_IOCARD) { 524 events |= (csc & I365_CSC_STSCHG) ? SS_STSCHG : 0; 525 } else { 526 events |= (csc & I365_CSC_BVD1) ? SS_BATDEAD : 0; 527 events |= (csc & I365_CSC_BVD2) ? SS_BATWARN : 0; 528 events |= (csc & I365_CSC_READY) ? SS_READY : 0; 529 } 530 531 if (events) 532 pcmcia_parse_events(&socket->socket, events); 533 534 return IRQ_HANDLED; 535 } 536 537 static void yenta_interrupt_wrapper(unsigned long data) 538 { 539 struct yenta_socket *socket = (struct yenta_socket *) data; 540 541 yenta_interrupt(0, (void *)socket); 542 socket->poll_timer.expires = jiffies + HZ; 543 add_timer(&socket->poll_timer); 544 } 545 546 static void yenta_clear_maps(struct yenta_socket *socket) 547 { 548 int i; 549 struct resource res = { .start = 0, .end = 0x0fff }; 550 pccard_io_map io = { 0, 0, 0, 0, 1 }; 551 pccard_mem_map mem = { .res = &res, }; 552 553 yenta_set_socket(&socket->socket, &dead_socket); 554 for (i = 0; i < 2; i++) { 555 io.map = i; 556 yenta_set_io_map(&socket->socket, &io); 557 } 558 for (i = 0; i < 5; i++) { 559 mem.map = i; 560 yenta_set_mem_map(&socket->socket, &mem); 561 } 562 } 563 564 /* redoes voltage interrogation if required */ 565 static void yenta_interrogate(struct yenta_socket *socket) 566 { 567 u32 state; 568 569 state = cb_readl(socket, CB_SOCKET_STATE); 570 if (!(state & (CB_5VCARD | CB_3VCARD | CB_XVCARD | CB_YVCARD)) || 571 (state & (CB_CDETECT1 | CB_CDETECT2 | CB_NOTACARD | CB_BADVCCREQ)) || 572 ((state & (CB_16BITCARD | CB_CBCARD)) == (CB_16BITCARD | CB_CBCARD))) 573 cb_writel(socket, CB_SOCKET_FORCE, CB_CVSTEST); 574 } 575 576 /* Called at resume and initialization events */ 577 static int yenta_sock_init(struct pcmcia_socket *sock) 578 { 579 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 580 581 exca_writeb(socket, I365_GBLCTL, 0x00); 582 exca_writeb(socket, I365_GENCTL, 0x00); 583 584 /* Redo card voltage interrogation */ 585 yenta_interrogate(socket); 586 587 yenta_clear_maps(socket); 588 589 if (socket->type && socket->type->sock_init) 590 socket->type->sock_init(socket); 591 592 /* Re-enable CSC interrupts */ 593 cb_writel(socket, CB_SOCKET_MASK, CB_CDMASK); 594 595 return 0; 596 } 597 598 static int yenta_sock_suspend(struct pcmcia_socket *sock) 599 { 600 struct yenta_socket *socket = container_of(sock, struct yenta_socket, socket); 601 602 /* Disable CSC interrupts */ 603 cb_writel(socket, CB_SOCKET_MASK, 0x0); 604 605 return 0; 606 } 607 608 /* 609 * Use an adaptive allocation for the memory resource, 610 * sometimes the memory behind pci bridges is limited: 611 * 1/8 of the size of the io window of the parent. 612 * max 4 MB, min 16 kB. We try very hard to not get below 613 * the "ACC" values, though. 614 */ 615 #define BRIDGE_MEM_MAX (4*1024*1024) 616 #define BRIDGE_MEM_ACC (128*1024) 617 #define BRIDGE_MEM_MIN (16*1024) 618 619 #define BRIDGE_IO_MAX 512 620 #define BRIDGE_IO_ACC 256 621 #define BRIDGE_IO_MIN 32 622 623 #ifndef PCIBIOS_MIN_CARDBUS_IO 624 #define PCIBIOS_MIN_CARDBUS_IO PCIBIOS_MIN_IO 625 #endif 626 627 static int yenta_search_one_res(struct resource *root, struct resource *res, 628 u32 min) 629 { 630 u32 align, size, start, end; 631 632 if (res->flags & IORESOURCE_IO) { 633 align = 1024; 634 size = BRIDGE_IO_MAX; 635 start = PCIBIOS_MIN_CARDBUS_IO; 636 end = ~0U; 637 } else { 638 unsigned long avail = root->end - root->start; 639 int i; 640 size = BRIDGE_MEM_MAX; 641 if (size > avail/8) { 642 size = (avail+1)/8; 643 /* round size down to next power of 2 */ 644 i = 0; 645 while ((size /= 2) != 0) 646 i++; 647 size = 1 << i; 648 } 649 if (size < min) 650 size = min; 651 align = size; 652 start = PCIBIOS_MIN_MEM; 653 end = ~0U; 654 } 655 656 do { 657 if (allocate_resource(root, res, size, start, end, align, 658 NULL, NULL) == 0) { 659 return 1; 660 } 661 size = size/2; 662 align = size; 663 } while (size >= min); 664 665 return 0; 666 } 667 668 669 static int yenta_search_res(struct yenta_socket *socket, struct resource *res, 670 u32 min) 671 { 672 struct resource *root; 673 int i; 674 675 pci_bus_for_each_resource(socket->dev->bus, root, i) { 676 if (!root) 677 continue; 678 679 if ((res->flags ^ root->flags) & 680 (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH)) 681 continue; /* Wrong type */ 682 683 if (yenta_search_one_res(root, res, min)) 684 return 1; 685 } 686 return 0; 687 } 688 689 static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end) 690 { 691 struct pci_dev *dev = socket->dev; 692 struct resource *res; 693 struct pci_bus_region region; 694 unsigned mask; 695 696 res = dev->resource + PCI_BRIDGE_RESOURCES + nr; 697 /* Already allocated? */ 698 if (res->parent) 699 return 0; 700 701 /* The granularity of the memory limit is 4kB, on IO it's 4 bytes */ 702 mask = ~0xfff; 703 if (type & IORESOURCE_IO) 704 mask = ~3; 705 706 res->name = dev->subordinate->name; 707 res->flags = type; 708 709 region.start = config_readl(socket, addr_start) & mask; 710 region.end = config_readl(socket, addr_end) | ~mask; 711 if (region.start && region.end > region.start && !override_bios) { 712 pcibios_bus_to_resource(dev->bus, res, ®ion); 713 if (pci_claim_resource(dev, PCI_BRIDGE_RESOURCES + nr) == 0) 714 return 0; 715 dev_printk(KERN_INFO, &dev->dev, 716 "Preassigned resource %d busy or not available, " 717 "reconfiguring...\n", 718 nr); 719 } 720 721 if (type & IORESOURCE_IO) { 722 if ((yenta_search_res(socket, res, BRIDGE_IO_MAX)) || 723 (yenta_search_res(socket, res, BRIDGE_IO_ACC)) || 724 (yenta_search_res(socket, res, BRIDGE_IO_MIN))) 725 return 1; 726 } else { 727 if (type & IORESOURCE_PREFETCH) { 728 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || 729 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || 730 (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) 731 return 1; 732 /* Approximating prefetchable by non-prefetchable */ 733 res->flags = IORESOURCE_MEM; 734 } 735 if ((yenta_search_res(socket, res, BRIDGE_MEM_MAX)) || 736 (yenta_search_res(socket, res, BRIDGE_MEM_ACC)) || 737 (yenta_search_res(socket, res, BRIDGE_MEM_MIN))) 738 return 1; 739 } 740 741 dev_printk(KERN_INFO, &dev->dev, 742 "no resource of type %x available, trying to continue...\n", 743 type); 744 res->start = res->end = res->flags = 0; 745 return 0; 746 } 747 748 /* 749 * Allocate the bridge mappings for the device.. 750 */ 751 static void yenta_allocate_resources(struct yenta_socket *socket) 752 { 753 int program = 0; 754 program += yenta_allocate_res(socket, 0, IORESOURCE_IO, 755 PCI_CB_IO_BASE_0, PCI_CB_IO_LIMIT_0); 756 program += yenta_allocate_res(socket, 1, IORESOURCE_IO, 757 PCI_CB_IO_BASE_1, PCI_CB_IO_LIMIT_1); 758 program += yenta_allocate_res(socket, 2, IORESOURCE_MEM|IORESOURCE_PREFETCH, 759 PCI_CB_MEMORY_BASE_0, PCI_CB_MEMORY_LIMIT_0); 760 program += yenta_allocate_res(socket, 3, IORESOURCE_MEM, 761 PCI_CB_MEMORY_BASE_1, PCI_CB_MEMORY_LIMIT_1); 762 if (program) 763 pci_setup_cardbus(socket->dev->subordinate); 764 } 765 766 767 /* 768 * Free the bridge mappings for the device.. 769 */ 770 static void yenta_free_resources(struct yenta_socket *socket) 771 { 772 int i; 773 for (i = 0; i < 4; i++) { 774 struct resource *res; 775 res = socket->dev->resource + PCI_BRIDGE_RESOURCES + i; 776 if (res->start != 0 && res->end != 0) 777 release_resource(res); 778 res->start = res->end = res->flags = 0; 779 } 780 } 781 782 783 /* 784 * Close it down - release our resources and go home.. 785 */ 786 static void yenta_close(struct pci_dev *dev) 787 { 788 struct yenta_socket *sock = pci_get_drvdata(dev); 789 790 /* Remove the register attributes */ 791 device_remove_file(&dev->dev, &dev_attr_yenta_registers); 792 793 /* we don't want a dying socket registered */ 794 pcmcia_unregister_socket(&sock->socket); 795 796 /* Disable all events so we don't die in an IRQ storm */ 797 cb_writel(sock, CB_SOCKET_MASK, 0x0); 798 exca_writeb(sock, I365_CSCINT, 0); 799 800 if (sock->cb_irq) 801 free_irq(sock->cb_irq, sock); 802 else 803 del_timer_sync(&sock->poll_timer); 804 805 if (sock->base) 806 iounmap(sock->base); 807 yenta_free_resources(sock); 808 809 pci_release_regions(dev); 810 pci_disable_device(dev); 811 pci_set_drvdata(dev, NULL); 812 } 813 814 815 static struct pccard_operations yenta_socket_operations = { 816 .init = yenta_sock_init, 817 .suspend = yenta_sock_suspend, 818 .get_status = yenta_get_status, 819 .set_socket = yenta_set_socket, 820 .set_io_map = yenta_set_io_map, 821 .set_mem_map = yenta_set_mem_map, 822 }; 823 824 825 #ifdef CONFIG_YENTA_TI 826 #include "ti113x.h" 827 #endif 828 #ifdef CONFIG_YENTA_RICOH 829 #include "ricoh.h" 830 #endif 831 #ifdef CONFIG_YENTA_TOSHIBA 832 #include "topic.h" 833 #endif 834 #ifdef CONFIG_YENTA_O2 835 #include "o2micro.h" 836 #endif 837 838 enum { 839 CARDBUS_TYPE_DEFAULT = -1, 840 CARDBUS_TYPE_TI, 841 CARDBUS_TYPE_TI113X, 842 CARDBUS_TYPE_TI12XX, 843 CARDBUS_TYPE_TI1250, 844 CARDBUS_TYPE_RICOH, 845 CARDBUS_TYPE_TOPIC95, 846 CARDBUS_TYPE_TOPIC97, 847 CARDBUS_TYPE_O2MICRO, 848 CARDBUS_TYPE_ENE, 849 }; 850 851 /* 852 * Different cardbus controllers have slightly different 853 * initialization sequences etc details. List them here.. 854 */ 855 static struct cardbus_type cardbus_type[] = { 856 #ifdef CONFIG_YENTA_TI 857 [CARDBUS_TYPE_TI] = { 858 .override = ti_override, 859 .save_state = ti_save_state, 860 .restore_state = ti_restore_state, 861 .sock_init = ti_init, 862 }, 863 [CARDBUS_TYPE_TI113X] = { 864 .override = ti113x_override, 865 .save_state = ti_save_state, 866 .restore_state = ti_restore_state, 867 .sock_init = ti_init, 868 }, 869 [CARDBUS_TYPE_TI12XX] = { 870 .override = ti12xx_override, 871 .save_state = ti_save_state, 872 .restore_state = ti_restore_state, 873 .sock_init = ti_init, 874 }, 875 [CARDBUS_TYPE_TI1250] = { 876 .override = ti1250_override, 877 .save_state = ti_save_state, 878 .restore_state = ti_restore_state, 879 .sock_init = ti_init, 880 }, 881 [CARDBUS_TYPE_ENE] = { 882 .override = ene_override, 883 .save_state = ti_save_state, 884 .restore_state = ti_restore_state, 885 .sock_init = ti_init, 886 }, 887 #endif 888 #ifdef CONFIG_YENTA_RICOH 889 [CARDBUS_TYPE_RICOH] = { 890 .override = ricoh_override, 891 .save_state = ricoh_save_state, 892 .restore_state = ricoh_restore_state, 893 }, 894 #endif 895 #ifdef CONFIG_YENTA_TOSHIBA 896 [CARDBUS_TYPE_TOPIC95] = { 897 .override = topic95_override, 898 }, 899 [CARDBUS_TYPE_TOPIC97] = { 900 .override = topic97_override, 901 }, 902 #endif 903 #ifdef CONFIG_YENTA_O2 904 [CARDBUS_TYPE_O2MICRO] = { 905 .override = o2micro_override, 906 .restore_state = o2micro_restore_state, 907 }, 908 #endif 909 }; 910 911 912 static unsigned int yenta_probe_irq(struct yenta_socket *socket, u32 isa_irq_mask) 913 { 914 int i; 915 unsigned long val; 916 u32 mask; 917 u8 reg; 918 919 /* 920 * Probe for usable interrupts using the force 921 * register to generate bogus card status events. 922 */ 923 cb_writel(socket, CB_SOCKET_EVENT, -1); 924 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); 925 reg = exca_readb(socket, I365_CSCINT); 926 exca_writeb(socket, I365_CSCINT, 0); 927 val = probe_irq_on() & isa_irq_mask; 928 for (i = 1; i < 16; i++) { 929 if (!((val >> i) & 1)) 930 continue; 931 exca_writeb(socket, I365_CSCINT, I365_CSC_STSCHG | (i << 4)); 932 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); 933 udelay(100); 934 cb_writel(socket, CB_SOCKET_EVENT, -1); 935 } 936 cb_writel(socket, CB_SOCKET_MASK, 0); 937 exca_writeb(socket, I365_CSCINT, reg); 938 939 mask = probe_irq_mask(val) & 0xffff; 940 941 return mask; 942 } 943 944 945 /* 946 * yenta PCI irq probing. 947 * currently only used in the TI/EnE initialization code 948 */ 949 #ifdef CONFIG_YENTA_TI 950 951 /* interrupt handler, only used during probing */ 952 static irqreturn_t yenta_probe_handler(int irq, void *dev_id) 953 { 954 struct yenta_socket *socket = (struct yenta_socket *) dev_id; 955 u8 csc; 956 u32 cb_event; 957 958 /* Clear interrupt status for the event */ 959 cb_event = cb_readl(socket, CB_SOCKET_EVENT); 960 cb_writel(socket, CB_SOCKET_EVENT, -1); 961 csc = exca_readb(socket, I365_CSC); 962 963 if (cb_event || csc) { 964 socket->probe_status = 1; 965 return IRQ_HANDLED; 966 } 967 968 return IRQ_NONE; 969 } 970 971 /* probes the PCI interrupt, use only on override functions */ 972 static int yenta_probe_cb_irq(struct yenta_socket *socket) 973 { 974 u8 reg = 0; 975 976 if (!socket->cb_irq) 977 return -1; 978 979 socket->probe_status = 0; 980 981 if (request_irq(socket->cb_irq, yenta_probe_handler, IRQF_SHARED, "yenta", socket)) { 982 dev_printk(KERN_WARNING, &socket->dev->dev, 983 "request_irq() in yenta_probe_cb_irq() failed!\n"); 984 return -1; 985 } 986 987 /* generate interrupt, wait */ 988 if (!socket->dev->irq) 989 reg = exca_readb(socket, I365_CSCINT); 990 exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG); 991 cb_writel(socket, CB_SOCKET_EVENT, -1); 992 cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); 993 cb_writel(socket, CB_SOCKET_FORCE, CB_FCARDSTS); 994 995 msleep(100); 996 997 /* disable interrupts */ 998 cb_writel(socket, CB_SOCKET_MASK, 0); 999 exca_writeb(socket, I365_CSCINT, reg); 1000 cb_writel(socket, CB_SOCKET_EVENT, -1); 1001 exca_readb(socket, I365_CSC); 1002 1003 free_irq(socket->cb_irq, socket); 1004 1005 return (int) socket->probe_status; 1006 } 1007 1008 #endif /* CONFIG_YENTA_TI */ 1009 1010 1011 /* 1012 * Set static data that doesn't need re-initializing.. 1013 */ 1014 static void yenta_get_socket_capabilities(struct yenta_socket *socket, u32 isa_irq_mask) 1015 { 1016 socket->socket.pci_irq = socket->cb_irq; 1017 if (isa_probe) 1018 socket->socket.irq_mask = yenta_probe_irq(socket, isa_irq_mask); 1019 else 1020 socket->socket.irq_mask = 0; 1021 1022 dev_printk(KERN_INFO, &socket->dev->dev, 1023 "ISA IRQ mask 0x%04x, PCI irq %d\n", 1024 socket->socket.irq_mask, socket->cb_irq); 1025 } 1026 1027 /* 1028 * Initialize the standard cardbus registers 1029 */ 1030 static void yenta_config_init(struct yenta_socket *socket) 1031 { 1032 u16 bridge; 1033 struct pci_dev *dev = socket->dev; 1034 struct pci_bus_region region; 1035 1036 pcibios_resource_to_bus(socket->dev->bus, ®ion, &dev->resource[0]); 1037 1038 config_writel(socket, CB_LEGACY_MODE_BASE, 0); 1039 config_writel(socket, PCI_BASE_ADDRESS_0, region.start); 1040 config_writew(socket, PCI_COMMAND, 1041 PCI_COMMAND_IO | 1042 PCI_COMMAND_MEMORY | 1043 PCI_COMMAND_MASTER | 1044 PCI_COMMAND_WAIT); 1045 1046 /* MAGIC NUMBERS! Fixme */ 1047 config_writeb(socket, PCI_CACHE_LINE_SIZE, L1_CACHE_BYTES / 4); 1048 config_writeb(socket, PCI_LATENCY_TIMER, 168); 1049 config_writel(socket, PCI_PRIMARY_BUS, 1050 (176 << 24) | /* sec. latency timer */ 1051 ((unsigned int)dev->subordinate->busn_res.end << 16) | /* subordinate bus */ 1052 ((unsigned int)dev->subordinate->busn_res.start << 8) | /* secondary bus */ 1053 dev->subordinate->primary); /* primary bus */ 1054 1055 /* 1056 * Set up the bridging state: 1057 * - enable write posting. 1058 * - memory window 0 prefetchable, window 1 non-prefetchable 1059 * - PCI interrupts enabled if a PCI interrupt exists.. 1060 */ 1061 bridge = config_readw(socket, CB_BRIDGE_CONTROL); 1062 bridge &= ~(CB_BRIDGE_CRST | CB_BRIDGE_PREFETCH1 | CB_BRIDGE_ISAEN | CB_BRIDGE_VGAEN); 1063 bridge |= CB_BRIDGE_PREFETCH0 | CB_BRIDGE_POSTEN; 1064 config_writew(socket, CB_BRIDGE_CONTROL, bridge); 1065 } 1066 1067 /** 1068 * yenta_fixup_parent_bridge - Fix subordinate bus# of the parent bridge 1069 * @cardbus_bridge: The PCI bus which the CardBus bridge bridges to 1070 * 1071 * Checks if devices on the bus which the CardBus bridge bridges to would be 1072 * invisible during PCI scans because of a misconfigured subordinate number 1073 * of the parent brige - some BIOSes seem to be too lazy to set it right. 1074 * Does the fixup carefully by checking how far it can go without conflicts. 1075 * See http://bugzilla.kernel.org/show_bug.cgi?id=2944 for more information. 1076 */ 1077 static void yenta_fixup_parent_bridge(struct pci_bus *cardbus_bridge) 1078 { 1079 struct pci_bus *sibling; 1080 unsigned char upper_limit; 1081 /* 1082 * We only check and fix the parent bridge: All systems which need 1083 * this fixup that have been reviewed are laptops and the only bridge 1084 * which needed fixing was the parent bridge of the CardBus bridge: 1085 */ 1086 struct pci_bus *bridge_to_fix = cardbus_bridge->parent; 1087 1088 /* Check bus numbers are already set up correctly: */ 1089 if (bridge_to_fix->busn_res.end >= cardbus_bridge->busn_res.end) 1090 return; /* The subordinate number is ok, nothing to do */ 1091 1092 if (!bridge_to_fix->parent) 1093 return; /* Root bridges are ok */ 1094 1095 /* stay within the limits of the bus range of the parent: */ 1096 upper_limit = bridge_to_fix->parent->busn_res.end; 1097 1098 /* check the bus ranges of all sibling bridges to prevent overlap */ 1099 list_for_each_entry(sibling, &bridge_to_fix->parent->children, 1100 node) { 1101 /* 1102 * If the sibling has a higher secondary bus number 1103 * and it's secondary is equal or smaller than our 1104 * current upper limit, set the new upper limit to 1105 * the bus number below the sibling's range: 1106 */ 1107 if (sibling->busn_res.start > bridge_to_fix->busn_res.end 1108 && sibling->busn_res.start <= upper_limit) 1109 upper_limit = sibling->busn_res.start - 1; 1110 } 1111 1112 /* Show that the wanted subordinate number is not possible: */ 1113 if (cardbus_bridge->busn_res.end > upper_limit) 1114 dev_printk(KERN_WARNING, &cardbus_bridge->dev, 1115 "Upper limit for fixing this " 1116 "bridge's parent bridge: #%02x\n", upper_limit); 1117 1118 /* If we have room to increase the bridge's subordinate number, */ 1119 if (bridge_to_fix->busn_res.end < upper_limit) { 1120 1121 /* use the highest number of the hidden bus, within limits */ 1122 unsigned char subordinate_to_assign = 1123 min_t(int, cardbus_bridge->busn_res.end, upper_limit); 1124 1125 dev_printk(KERN_INFO, &bridge_to_fix->dev, 1126 "Raising subordinate bus# of parent " 1127 "bus (#%02x) from #%02x to #%02x\n", 1128 bridge_to_fix->number, 1129 (int)bridge_to_fix->busn_res.end, subordinate_to_assign); 1130 1131 /* Save the new subordinate in the bus struct of the bridge */ 1132 bridge_to_fix->busn_res.end = subordinate_to_assign; 1133 1134 /* and update the PCI config space with the new subordinate */ 1135 pci_write_config_byte(bridge_to_fix->self, 1136 PCI_SUBORDINATE_BUS, bridge_to_fix->busn_res.end); 1137 } 1138 } 1139 1140 /* 1141 * Initialize a cardbus controller. Make sure we have a usable 1142 * interrupt, and that we can map the cardbus area. Fill in the 1143 * socket information structure.. 1144 */ 1145 static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id) 1146 { 1147 struct yenta_socket *socket; 1148 int ret; 1149 1150 /* 1151 * If we failed to assign proper bus numbers for this cardbus 1152 * controller during PCI probe, its subordinate pci_bus is NULL. 1153 * Bail out if so. 1154 */ 1155 if (!dev->subordinate) { 1156 dev_printk(KERN_ERR, &dev->dev, "no bus associated! " 1157 "(try 'pci=assign-busses')\n"); 1158 return -ENODEV; 1159 } 1160 1161 socket = kzalloc(sizeof(struct yenta_socket), GFP_KERNEL); 1162 if (!socket) 1163 return -ENOMEM; 1164 1165 /* prepare pcmcia_socket */ 1166 socket->socket.ops = ¥ta_socket_operations; 1167 socket->socket.resource_ops = &pccard_nonstatic_ops; 1168 socket->socket.dev.parent = &dev->dev; 1169 socket->socket.driver_data = socket; 1170 socket->socket.owner = THIS_MODULE; 1171 socket->socket.features = SS_CAP_PAGE_REGS | SS_CAP_PCCARD; 1172 socket->socket.map_size = 0x1000; 1173 socket->socket.cb_dev = dev; 1174 1175 /* prepare struct yenta_socket */ 1176 socket->dev = dev; 1177 pci_set_drvdata(dev, socket); 1178 1179 /* 1180 * Do some basic sanity checking.. 1181 */ 1182 if (pci_enable_device(dev)) { 1183 ret = -EBUSY; 1184 goto free; 1185 } 1186 1187 ret = pci_request_regions(dev, "yenta_socket"); 1188 if (ret) 1189 goto disable; 1190 1191 if (!pci_resource_start(dev, 0)) { 1192 dev_printk(KERN_ERR, &dev->dev, "No cardbus resource!\n"); 1193 ret = -ENODEV; 1194 goto release; 1195 } 1196 1197 /* 1198 * Ok, start setup.. Map the cardbus registers, 1199 * and request the IRQ. 1200 */ 1201 socket->base = ioremap(pci_resource_start(dev, 0), 0x1000); 1202 if (!socket->base) { 1203 ret = -ENOMEM; 1204 goto release; 1205 } 1206 1207 /* 1208 * report the subsystem vendor and device for help debugging 1209 * the irq stuff... 1210 */ 1211 dev_printk(KERN_INFO, &dev->dev, "CardBus bridge found [%04x:%04x]\n", 1212 dev->subsystem_vendor, dev->subsystem_device); 1213 1214 yenta_config_init(socket); 1215 1216 /* Disable all events */ 1217 cb_writel(socket, CB_SOCKET_MASK, 0x0); 1218 1219 /* Set up the bridge regions.. */ 1220 yenta_allocate_resources(socket); 1221 1222 socket->cb_irq = dev->irq; 1223 1224 /* Do we have special options for the device? */ 1225 if (id->driver_data != CARDBUS_TYPE_DEFAULT && 1226 id->driver_data < ARRAY_SIZE(cardbus_type)) { 1227 socket->type = &cardbus_type[id->driver_data]; 1228 1229 ret = socket->type->override(socket); 1230 if (ret < 0) 1231 goto unmap; 1232 } 1233 1234 /* We must finish initialization here */ 1235 1236 if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) { 1237 /* No IRQ or request_irq failed. Poll */ 1238 socket->cb_irq = 0; /* But zero is a valid IRQ number. */ 1239 init_timer(&socket->poll_timer); 1240 socket->poll_timer.function = yenta_interrupt_wrapper; 1241 socket->poll_timer.data = (unsigned long)socket; 1242 socket->poll_timer.expires = jiffies + HZ; 1243 add_timer(&socket->poll_timer); 1244 dev_printk(KERN_INFO, &dev->dev, 1245 "no PCI IRQ, CardBus support disabled for this " 1246 "socket.\n"); 1247 dev_printk(KERN_INFO, &dev->dev, 1248 "check your BIOS CardBus, BIOS IRQ or ACPI " 1249 "settings.\n"); 1250 } else { 1251 socket->socket.features |= SS_CAP_CARDBUS; 1252 } 1253 1254 /* Figure out what the dang thing can do for the PCMCIA layer... */ 1255 yenta_interrogate(socket); 1256 yenta_get_socket_capabilities(socket, isa_interrupts); 1257 dev_printk(KERN_INFO, &dev->dev, 1258 "Socket status: %08x\n", cb_readl(socket, CB_SOCKET_STATE)); 1259 1260 yenta_fixup_parent_bridge(dev->subordinate); 1261 1262 /* Register it with the pcmcia layer.. */ 1263 ret = pcmcia_register_socket(&socket->socket); 1264 if (ret == 0) { 1265 /* Add the yenta register attributes */ 1266 ret = device_create_file(&dev->dev, &dev_attr_yenta_registers); 1267 if (ret == 0) 1268 goto out; 1269 1270 /* error path... */ 1271 pcmcia_unregister_socket(&socket->socket); 1272 } 1273 1274 unmap: 1275 iounmap(socket->base); 1276 release: 1277 pci_release_regions(dev); 1278 disable: 1279 pci_disable_device(dev); 1280 free: 1281 kfree(socket); 1282 out: 1283 return ret; 1284 } 1285 1286 #ifdef CONFIG_PM 1287 static int yenta_dev_suspend_noirq(struct device *dev) 1288 { 1289 struct pci_dev *pdev = to_pci_dev(dev); 1290 struct yenta_socket *socket = pci_get_drvdata(pdev); 1291 1292 if (!socket) 1293 return 0; 1294 1295 if (socket->type && socket->type->save_state) 1296 socket->type->save_state(socket); 1297 1298 pci_save_state(pdev); 1299 pci_read_config_dword(pdev, 16*4, &socket->saved_state[0]); 1300 pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]); 1301 pci_disable_device(pdev); 1302 1303 return 0; 1304 } 1305 1306 static int yenta_dev_resume_noirq(struct device *dev) 1307 { 1308 struct pci_dev *pdev = to_pci_dev(dev); 1309 struct yenta_socket *socket = pci_get_drvdata(pdev); 1310 int ret; 1311 1312 if (!socket) 1313 return 0; 1314 1315 pci_write_config_dword(pdev, 16*4, socket->saved_state[0]); 1316 pci_write_config_dword(pdev, 17*4, socket->saved_state[1]); 1317 1318 ret = pci_enable_device(pdev); 1319 if (ret) 1320 return ret; 1321 1322 pci_set_master(pdev); 1323 1324 if (socket->type && socket->type->restore_state) 1325 socket->type->restore_state(socket); 1326 1327 return 0; 1328 } 1329 1330 static const struct dev_pm_ops yenta_pm_ops = { 1331 .suspend_noirq = yenta_dev_suspend_noirq, 1332 .resume_noirq = yenta_dev_resume_noirq, 1333 .freeze_noirq = yenta_dev_suspend_noirq, 1334 .thaw_noirq = yenta_dev_resume_noirq, 1335 .poweroff_noirq = yenta_dev_suspend_noirq, 1336 .restore_noirq = yenta_dev_resume_noirq, 1337 }; 1338 1339 #define YENTA_PM_OPS (¥ta_pm_ops) 1340 #else 1341 #define YENTA_PM_OPS NULL 1342 #endif 1343 1344 #define CB_ID(vend, dev, type) \ 1345 { \ 1346 .vendor = vend, \ 1347 .device = dev, \ 1348 .subvendor = PCI_ANY_ID, \ 1349 .subdevice = PCI_ANY_ID, \ 1350 .class = PCI_CLASS_BRIDGE_CARDBUS << 8, \ 1351 .class_mask = ~0, \ 1352 .driver_data = CARDBUS_TYPE_##type, \ 1353 } 1354 1355 static const struct pci_device_id yenta_table[] = { 1356 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1031, TI), 1357 1358 /* 1359 * TBD: Check if these TI variants can use more 1360 * advanced overrides instead. (I can't get the 1361 * data sheets for these devices. --rmk) 1362 */ 1363 #ifdef CONFIG_YENTA_TI 1364 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI), 1365 1366 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X), 1367 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1131, TI113X), 1368 1369 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1211, TI12XX), 1370 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1220, TI12XX), 1371 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1221, TI12XX), 1372 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1225, TI12XX), 1373 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251A, TI12XX), 1374 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1251B, TI12XX), 1375 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420, TI12XX), 1376 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1450, TI12XX), 1377 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1451A, TI12XX), 1378 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1510, TI12XX), 1379 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520, TI12XX), 1380 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1620, TI12XX), 1381 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4410, TI12XX), 1382 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4450, TI12XX), 1383 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4451, TI12XX), 1384 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4510, TI12XX), 1385 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_4520, TI12XX), 1386 1387 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1250, TI1250), 1388 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1410, TI1250), 1389 1390 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX21_XX11, TI12XX), 1391 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X515, TI12XX), 1392 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XX12, TI12XX), 1393 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X420, TI12XX), 1394 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_X620, TI12XX), 1395 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7410, TI12XX), 1396 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7510, TI12XX), 1397 CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_7610, TI12XX), 1398 1399 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_710, ENE), 1400 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_712, ENE), 1401 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_720, ENE), 1402 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_722, ENE), 1403 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1211, ENE), 1404 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE), 1405 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE), 1406 CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE), 1407 #endif /* CONFIG_YENTA_TI */ 1408 1409 #ifdef CONFIG_YENTA_RICOH 1410 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH), 1411 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH), 1412 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH), 1413 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH), 1414 CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH), 1415 #endif 1416 1417 #ifdef CONFIG_YENTA_TOSHIBA 1418 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95), 1419 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97), 1420 CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97), 1421 #endif 1422 1423 #ifdef CONFIG_YENTA_O2 1424 CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO), 1425 #endif 1426 1427 /* match any cardbus bridge */ 1428 CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT), 1429 { /* all zeroes */ } 1430 }; 1431 MODULE_DEVICE_TABLE(pci, yenta_table); 1432 1433 1434 static struct pci_driver yenta_cardbus_driver = { 1435 .name = "yenta_cardbus", 1436 .id_table = yenta_table, 1437 .probe = yenta_probe, 1438 .remove = yenta_close, 1439 .driver.pm = YENTA_PM_OPS, 1440 }; 1441 1442 module_pci_driver(yenta_cardbus_driver); 1443 1444 MODULE_LICENSE("GPL"); 1445